Improvement in carriage-springs



D. S. ABBOTT. CARRIAGE SPRING.

Patented Deo. 13, 18 70.

PETERS. PholoUlhngraphlr, wnmn mn, n c.

Seated cam.

DAYID S. ABBOTT, OF ISOH-UA, NEW YORK.

Letters Patent No. 109,993, dated December 13, 1970f IMPROVEMENT l-N CARRIAGE-SPRINGS.

'lhe Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that 1, DAVID ABBOTT, of Ischua in the county of Oattarangus and State of X cw York, have invented a new and useful Improvement in Springs for Carriages; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification.

This invent-ion relates to a new and useful improvement in springs for carriages, wagons, sulkeys, and seats, and consists in a bar and spring so arranged that, while the bar receives the weight or power, it is made to compress or operate upon an elastic spring, by means of which the required degree of elasticity is imparted to the carriage or wagon-body or seat, as hereinafter more fully described.

In the accompanying drawingpair of my improved springsbcneath the bed of a carriage.

Figure'2 is a view of the under side of the carriagebed, showing the position of the bars and springs.

Similar letters of reference indicate corresponding parts. A is the bed or bottom of a carriage or. wagonbody.

B is the forward axle.

G is the rear axle.

The front and rear wheels are seen in outline.

1) represents the bars which in-a carriage or wagon are arranged in pairs, as seen in the drawing. These bars are hinged to the bed A by means of hangers D, and the pivots of the hinges are fulcrums in which the Figure 1 represents a longitudinal side view of a bars work. These bars are stiffened by braces E E, which braces are attached to the ends of the bars by angular pieces of iron h F. They pass through the lever as indicated in dotted lines, the bracing-point being the end ofthe stud G, opposite the fulcrum.

His the fulcrum pin.

One end of the bar is attached to the axle or bolster of the carriage. The other end slides up and down on the bolt 1, which passes down from the bed A, with a nut upon its lower end.

J is an elastic spring of India rubber, (a spiral wire spring may be used,) which is supported on the bolt by the nut K, with an intervening washer L.

By this arrangement of the bars and springs the weight of the body of the carriage or wagon is con veyed to the bar and spring through the fulcrum-pin H. The four springs and bearing-points beneath the body furnish a good support, and allow of any desired degree of elasticity. These sp'iings maybe applied to sulkey-bodies, or to seats of wagons, in which cases the fulcrum may be at one end of the bar, andthe weight applied to the opposite end, if such an arrangementis preferred.

Having thus described my invention,

I claim as new and desire to secure by Letters Patent- In combination with a carriage or wagon-body, a sulkey, or seat, the bar D (either with or without the braces E) and the spring J, when the same are combined and arranged to operate substantially as and for the purposes herein shown and described.

- JJAVlD S. ABBOTT.

Witnesses:

Cannons J. Oaswnnr, S. It. SHERLOCK. 

